diff options
Diffstat (limited to 'nptl/allocatestack.c')
| -rw-r--r-- | nptl/allocatestack.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c index 7aa5af21e4..7983bed273 100644 --- a/nptl/allocatestack.c +++ b/nptl/allocatestack.c @@ -32,28 +32,39 @@ #ifndef NEED_SEPARATE_REGISTER_STACK /* Most architectures have exactly one stack pointer. Some have more. */ -#define STACK_VARIABLES void *stackaddr +# define STACK_VARIABLES void *stackaddr /* How to pass the values to the 'create_thread' function. */ -#define STACK_VARIABLES_ARGS stackaddr +# define STACK_VARIABLES_ARGS stackaddr /* How to declare function which gets there parameters. */ -#define STACK_VARIABLES_PARMS void *stackaddr +# define STACK_VARIABLES_PARMS void *stackaddr /* How to declare allocate_stack. */ -#define ALLOCATE_STACK_PARMS void **stack +# define ALLOCATE_STACK_PARMS void **stack /* This is how the function is called. We do it this way to allow other variants of the function to have more parameters. */ -#define ALLOCATE_STACK(attr, pd) allocate_stack (attr, pd, &stackaddr) +# define ALLOCATE_STACK(attr, pd) allocate_stack (attr, pd, &stackaddr) #else -#define STACK_VARIABLES void *stackaddr; size_t stacksize -#define STACK_VARIABLES_ARGS stackaddr, stacksize -#define STACK_VARIABLES_PARMS void *stackaddr, size_t stacksize -#define ALLOCATE_STACK_PARMS void **stack, size_t *stacksize -#define ALLOCATE_STACK(attr, pd) \ +/* We need two stacks. The kernel will place them but we have to tell + the kernel about the size of the reserved address space. */ +# define STACK_VARIABLES void *stackaddr; size_t stacksize + +/* How to pass the values to the 'create_thread' function. */ +# define STACK_VARIABLES_ARGS stackaddr, stacksize + +/* How to declare function which gets there parameters. */ +# define STACK_VARIABLES_PARMS void *stackaddr, size_t stacksize + +/* How to declare allocate_stack. */ +# define ALLOCATE_STACK_PARMS void **stack, size_t *stacksize + +/* This is how the function is called. We do it this way to allow + other variants of the function to have more parameters. */ +# define ALLOCATE_STACK(attr, pd) \ allocate_stack (attr, pd, &stackaddr, &stacksize) #endif |